diff --git a/lib/wibox/widget/textclock.lua b/lib/wibox/widget/textclock.lua
index aec44521..221bed86 100644
--- a/lib/wibox/widget/textclock.lua
+++ b/lib/wibox/widget/textclock.lua
@@ -33,13 +33,13 @@ function textclock.new(format, timeout)
 
     local w = textbox()
     local t
-    function w._textclock_update_cb()
+    function w._private.textclock_update_cb()
         w:set_markup(DateTime.new_now_local():format(format))
         t.timeout = calc_timeout(timeout)
         t:again()
         return true -- Continue the timer
     end
-    t = timer.weak_start_new(timeout, w._textclock_update_cb)
+    t = timer.weak_start_new(timeout, w._private.textclock_update_cb)
     t:emit_signal("timeout")
     return w
 end
@@ -48,6 +48,10 @@ function textclock.mt:__call(...)
     return textclock.new(...)
 end
 
+--@DOC_widget_COMMON@
+
+--@DOC_object_COMMON@
+
 return setmetatable(textclock, textclock.mt)
 
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